In an auto show Volkswagen displayed a new Jetta that had been used in an actual side-impact test. What you see in the image below is that the car’s robust B-pillar and sill structure have done an admirable job of absorbing the energy of the collision, minimizing intrusion into the passenger compartment and in the process maximizing the amount of room in which the side airbags can do their job. The doors were removed and their contribution to this excellent performance can’t be directly observed. Notice in the second image, the side body structure is color coded to show different types of material used.